Vacuum cleaner



Jan. 5, 1932. G, C w s 1,839,793

VACUUM CLEANER Filed Jan. 22, 1929 2 Sheets-Sheet l v //v YEN TORz-ofiae-azsw/a ATTORNEY Jan. 5, 1932.

G c, LEWIS 1,839,793

VACUUM CLEANER Filed Jan. 22, 1929 2 Sheets-Sheet INVE'N 70/?!ATTORNEYS.

Patented Jan. 5, 1932 UNITED STATE'S- PATENT OFFICE GEORGE G. LEWIS, OFPHILADELPHIA, RENNSYLVANIA VACUUM CLEANER Application filed January 22,1829. Serial No. 334,182. I

My invention relates to a novel construc- 10 causing vibration of thenap of the material being cleaned, similar to the action of a beater orbrush but without the injurious-eflect of mechanical beating, my noveldevice being shut off at will and being adjustable at any period readilyto cause more or.less rapid vibration to suit conditions. y While myinvention is capable of being carried out by various forms ofmechanisms, I have shown herein one form which may be employed, it beingunderstood thatvarlous modifications of the same may be employed.

For the purpose of illustrating my invention I have shown in theaccompanying drawings one form'thereof which is at present preferred byme, since the same has been found in practice to give satisfactory andreliable results, although it is to be understood that the variousinstrumentalities of which my invention consists can be'variouslyarranged and organized and thatmy invention is not limited to theprecise arrangement and organization of the instrumentalities as hereinshown and described.

In the drawings: Fig. 1 represents a plan view of a suction or vacuumcleaner having my invention applied thereto.

Fig. 2 represents aside elevation of Fig. 1. Fig. 3 represents a frontelevation of Fig. 2. Fig. 4 represents upon an enlarged scale a planview of the intermediate casing, with the cover removed.

Fig. 5 represents a vertical section taken upon the line 55 of Fig. 4.

Fig. 6 represents a horizontal section taken upon the line 66 of Fig. 5.

Fig. 7 represents a perspective view of one of the valvular elements indetachable position showing the short arm passed thereto and the linkforming part of the toggle mechanism'whereby the valvular element isactuated. 1

Similar numerals of reference indicate corres onding parts.

n the drawings,the reference numeral 1 designates my novel constructionof a vacuum cleaner provided with a fan chamber2 having'rigidly securedto one end thereof the motor housing 3, the opposite or forward end.being provided. with a. collecting nozzle l' which terminates in alateral elongated working portion or suction inlet 5; The fan chamber,motor housing and nozzle constitutes a rigid structure comprising acleaner casing mounted upon the front and rear rollers 6 and 7, and asthis construction per se is well. known and made in accordance with theU. S. Patent No. 1,507 ,417 I d'tem it unnecessary to show or, describethese ,e detail since my novel invention particularly relates to theintermediate casing 8 positioned P between the fan chamber 2 and thecollecting nozzle4. The intermediate casing 8 is preferably rectangularin shape and is provided with a. bottom wall 9, side walls 10, and anupper wall 11, see Fig. 5. Upon the upper wall 11 there is formed therear extension or -wall 12 and in the front wall 13, as seen in lementsin further meral 18 designates a valvular element, best seen in Figs. 5,6, and 7, the same comprising the body portion 19 having the lower stemor pintle 20-which is mounted on the step hearing 21 seen in Fig. 5. Theupper stem or pintle 22 is rotatably mounted in the guide opening 23 inthe body 11 and has secured thereto one end of the short arm 24 whoseother end is pivotally attached at the point 25 to the link 26. Thereare two valvular elements 19, one on each side of the intermediatecasing- 8, as will be understood from Figs. 4 and 6,

and there are two arms 24 and two links 26. t

to the pivot point 27 and its opposite end connected to afixed lug 31,as will be understood from Figs. 4 and 5. 32 designates an automaticmake and break switch which by means of the wiring indicated at 33 and34 controls the energizing of the solenoid 29 whereby the core28'tl1ereof is reciprocated and by reason of the intermediateconnections 25 and 24 the valvular elements 19 are caused to flutter oroscillate Within th intermediate casing 8. The latter is provided withthe rear flange 36 having connection with the fan chamber 2 while thefront flange 37 permits connection to be readily made with the suctionnozzle 4.

The wiring connection 33 and 34 can be conrected to any suitable sourceof electrical energy as the circuit for the motor within casing 3.

The operation is as follows:

lVhen the switch 32 is turned on the solenoid 29 is energized andde-energized, alternately and continuously so long as the switch 32 isturned on and thus causes the core 28 to reciprocate. The reciprocationsof the core 28 by reason of the toggle connection, seen in Fig. 4, willcause the valvular elements 19 to flutter or oscillate, the tension ofthe spring causing said valvular elements normally to assume theposition seen in Figs. 4 and 6, which is the positionthe parts assumewhen the switch 32 is off.

During an operating period, at regular or lrregular lntervals, asdesired, vibration of the nap of the material being cleaned occurs,which vibration is similar to the action of a beater or a brush butwithout the injurious eflects obtained in mechanical beating. In,

other words the entire operation of cleaning surfaces according to mynovel structure is that of suction. The arts ofthe intermediate casing 8are so tted with respect to one another and with respect to the suctionnozzle 4 and fan casing 2 that access may be readily had to the partsoperating the valvular elements, the advantage of which is important.

7 I am aware that the invention may be embodied in other specific formswithout departing from the spirit or' essential attributes thereof, andI therefore desire the present embodiment to be considered in allrespects is/illustrative and not restrictive, reference being had to theappended claim rather than to the foregoing description to indicate thescope of theinvention.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is

pivotally mounted within and adapted .to

close the passageway in said casing to inter- 4 connection operativelyconnecting said solenoid to said valvular elements.

GEORGE C. LEWIS.

